Fuel Tank Tension Mercedes W639 Strap Holder Bracket Support A6394700540

Fuel Tank Tension Mercedes W639 Strap Holder Bracket Support is an original mounting component from the Fuel filler caps and accessories group, designed for stable positioning of the fuel tank within the vehicle body. The precise geometry of the bracket ensures proper guidance and support for the tank, which translates into safe operation of the fuel system and predictable vehicle handling. This is a practical solution for users who want to restore the factory stiffness of the tank mounting in their Mercedes.

Specifications and technical data

• SKU: A6394700540
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6394700540
• Substitutable numbers: A6394700540, A 639 470 05 40, KZ
• Category: Fuel Flaps & Components

Purpose and function of the fuel tank mounting bracket

The fuel tank mounting bracket in the Mercedes W639 is responsible for stably holding the fuel tank in the position designed by the manufacturer. A correctly selected mounting component minimizes the risk of unwanted stress on the tank, fuel lines, and equipment, which is important for both durability and operational safety.

Replacing the bracket is particularly recommended when the factory component shows signs of wear, corrosion, or deformation after a collision or bodywork repairs. Using an original bracket allows you to maintain compliance with the manufacturer's design and avoid problems resulting from the inaccurate fit of universal replacements.

Benefits of using an original Mercedes bracket

Choosing a fuel tank mounting bracket dedicated to the Mercedes W639 provides a number of practical advantages:

• factory fit to the mounting points in the body,
• appropriate stiffness and structural load capacity,
• compatibility with the original fuel tank and equipment,
• reduction of vibrations and tank displacement while driving.

Thanks to this, the installation proceeds in an orderly manner, without the need for structural modifications, and the fuel system maintains the parameters specified by the manufacturer. This is especially important for vehicles used intensively or under full load, where the stability of the fuel tank mounting has a real impact on comfort and safety.

Condition of the component and service application

The offered bracket comes from disassembly and is a used component, which makes it an attractive cost-effective solution while maintaining the original manufacturer's specification. This type of part works great in:

• post-accident repairs in the rear part of the body,
• renovation of the fuel tank mounting system in older models,
• restoring the factory configuration after previous modifications.

Using an original bracket from the same model platform allows you to reduce the time for diagnostics and fitting, and also facilitates subsequent vehicle servicing.

Technical support and selection in the context of the fuel system

The selection of a fuel tank mounting bracket should always be combined with an inspection of the entire fuel system – tank tightness, condition of lines, and associated components. For users who want to deepen their knowledge about diagnostics and operation in this area, the following article will be helpful: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration. You will find practical information there about selecting parts by OEM numbers, typical symptoms of wear, and recommended service procedures.

Expanding work within the Mercedes fuel system

If you are planning a comprehensive repair or modernization of the fuel system area in your Mercedes and need other components from the same group, such as additional brackets, covers, or accessories related to the fuel filler, check the available parts in the Mercedes fuel filler caps and accessories category.